TLS client authentication support

Hi,

I tried to use https://github.com/RocketChat/Rocket.Chat.Electron/releases/download/3.8.16/rocketchat-3.8.16-linux-amd64.deb to run rocket chat but my destination chat server requires tls client authentication to be used.
I did not found any setting (may be hidden very good though) where I can add my pkcs#12 key / certificate so that I can use the app.

So the question is, where can I tell rocket chat about my pkcs#12 container to be used for the connection?